https://gcc.gnu.org/g:c73bf6669e6c316790728c003a9f4ef6fa993ebb
commit c73bf6669e6c316790728c003a9f4ef6fa993ebb Author: Mikael Morin <mik...@gcc.gnu.org> Date: Wed Jul 16 21:39:51 2025 +0200 Extraction gfc_conv_shift_descriptor Suppression variable inutilisée Diff: --- gcc/fortran/trans-descriptor.cc | 39 +++++++++++++++++++++++++++++++++++++++ gcc/fortran/trans-descriptor.h | 1 + gcc/fortran/trans-expr.cc | 36 +----------------------------------- 3 files changed, 41 insertions(+), 35 deletions(-) diff --git a/gcc/fortran/trans-descriptor.cc b/gcc/fortran/trans-descriptor.cc index fb9fd15d299f..63a7e0bdef5f 100644 --- a/gcc/fortran/trans-descriptor.cc +++ b/gcc/fortran/trans-descriptor.cc @@ -1118,3 +1118,42 @@ gfc_conv_shift_descriptor (stmtblock_t *block, tree desc, conv_shift_descriptor (block, desc, as); } + + +void +gfc_conv_shift_descriptor (stmtblock_t *block, tree dest, tree src, + int rank, tree zero_cond) +{ + tree tmp = gfc_conv_descriptor_data_get (src); + gfc_conv_descriptor_data_set (block, dest, tmp); + + tree offset = gfc_index_zero_node; + for (int n = 0 ; n < rank; n++) + { + tree lbound = gfc_conv_descriptor_lbound_get (dest, gfc_rank_cst[n]); + lbound = fold_build3_loc (input_location, COND_EXPR, + gfc_array_index_type, zero_cond, + gfc_index_one_node, lbound); + lbound = gfc_evaluate_now (lbound, block); + + tmp = gfc_conv_descriptor_ubound_get (src, gfc_rank_cst[n]); + tmp = fold_build2_loc (input_location, PLUS_EXPR, + gfc_array_index_type, tmp, lbound); + gfc_conv_descriptor_lbound_set (block, dest, + gfc_rank_cst[n], lbound); + gfc_conv_descriptor_ubound_set (block, dest, + gfc_rank_cst[n], tmp); + + /* Set stride and accumulate the offset. */ + tmp = gfc_conv_descriptor_stride_get (src, gfc_rank_cst[n]); + gfc_conv_descriptor_stride_set (block, dest, + gfc_rank_cst[n], tmp); + tmp = fold_build2_loc (input_location, MULT_EXPR, + gfc_array_index_type, lbound, tmp); + offset = fold_build2_loc (input_location, MINUS_EXPR, + gfc_array_index_type, offset, tmp); + offset = gfc_evaluate_now (offset, block); + } + + gfc_conv_descriptor_offset_set (block, dest, offset); +} diff --git a/gcc/fortran/trans-descriptor.h b/gcc/fortran/trans-descriptor.h index 1d9a640bccb5..5604126273c8 100644 --- a/gcc/fortran/trans-descriptor.h +++ b/gcc/fortran/trans-descriptor.h @@ -103,6 +103,7 @@ void gfc_init_descriptor_variable (stmtblock_t *block, gfc_symbol *sym, tree des void gfc_conv_shift_descriptor_lbound (stmtblock_t *, tree, int, tree); void gfc_conv_shift_descriptor (stmtblock_t *, tree, int); void gfc_conv_shift_descriptor (stmtblock_t *, tree, const gfc_array_ref &); +void gfc_conv_shift_descriptor (stmtblock_t *, tree, tree, int, tree); void gfc_set_descriptor_from_scalar_class (stmtblock_t *, tree, tree, gfc_expr *); void gfc_set_descriptor_from_scalar (stmtblock_t *, tree, tree, symbol_attribute, diff --git a/gcc/fortran/trans-expr.cc b/gcc/fortran/trans-expr.cc index 25e1eb020959..933c3588899e 100644 --- a/gcc/fortran/trans-expr.cc +++ b/gcc/fortran/trans-expr.cc @@ -11707,7 +11707,6 @@ fcncall_realloc_result (gfc_se *se, int rank, tree dtype) tree desc; tree res_desc; tree tmp; - tree offset; tree zero_cond; tree not_same_shape; stmtblock_t shape_block; @@ -11740,9 +11739,6 @@ fcncall_realloc_result (gfc_se *se, int rank, tree dtype) tmp = gfc_call_free (tmp); gfc_add_expr_to_block (&se->post, tmp); - tmp = gfc_conv_descriptor_data_get (res_desc); - gfc_conv_descriptor_data_set (&se->post, desc, tmp); - /* Check that the shapes are the same between lhs and expression. The evaluation of the shape is done in 'shape_block' to avoid unitialized warnings from the lhs bounds. */ @@ -11786,37 +11782,7 @@ fcncall_realloc_result (gfc_se *se, int rank, tree dtype) /* Now reset the bounds returned from the function call to bounds based on the lhs lbounds, except where the lhs is not allocated or the shapes of 'variable and 'expr' are different. Set the offset accordingly. */ - offset = gfc_index_zero_node; - for (n = 0 ; n < rank; n++) - { - tree lbound; - - lbound = gfc_conv_descriptor_lbound_get (desc, gfc_rank_cst[n]); - lbound = fold_build3_loc (input_location, COND_EXPR, - gfc_array_index_type, zero_cond, - gfc_index_one_node, lbound); - lbound = gfc_evaluate_now (lbound, &se->post); - - tmp = gfc_conv_descriptor_ubound_get (res_desc, gfc_rank_cst[n]); - tmp = fold_build2_loc (input_location, PLUS_EXPR, - gfc_array_index_type, tmp, lbound); - gfc_conv_descriptor_lbound_set (&se->post, desc, - gfc_rank_cst[n], lbound); - gfc_conv_descriptor_ubound_set (&se->post, desc, - gfc_rank_cst[n], tmp); - - /* Set stride and accumulate the offset. */ - tmp = gfc_conv_descriptor_stride_get (res_desc, gfc_rank_cst[n]); - gfc_conv_descriptor_stride_set (&se->post, desc, - gfc_rank_cst[n], tmp); - tmp = fold_build2_loc (input_location, MULT_EXPR, - gfc_array_index_type, lbound, tmp); - offset = fold_build2_loc (input_location, MINUS_EXPR, - gfc_array_index_type, offset, tmp); - offset = gfc_evaluate_now (offset, &se->post); - } - - gfc_conv_descriptor_offset_set (&se->post, desc, offset); + gfc_conv_shift_descriptor (&se->post, desc, res_desc, rank, zero_cond); }